ACT 2021 June(D06) Math Question 11 Explanation - ACT Helper

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2021 June(D06) Math Question 11
Algebraic & Function Expressions
- Systems of Equations
Choice A
$$x+2y=2 --- (1)$$ $$-x+y=7 ---(2)$$ $$=> (1)+(2)=>3y=9$$ $$=> y=3 $$
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